ArticleGut pathogens2020
Comparative genomics of Helicobacter pullorum from different countries.
Article in Gut pathogens, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 11 citations in OpenAlex.
- Genetic characteristics and potential pathogenic agents inEmerging microbes & infections · 2024Article
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- Phenotypic and Genomic Characteristics ofMicroorganisms · 2023Article
- Isolation and Genomic Characteristics of Cat-BorneMicroorganisms · 2023Article
- Article
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9 authors at 3 institutions in 1 country.
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Abstract
backgroundHelicobacter pullorum commonly colonized in the gastrointestinal tract of poultry and caused gastroenteritis. This bacterium could be transmitted to humans through contaminated food and caused colitis and hepatitis. Currently, the genetic characteristics of the H. pullorum were not recognized enough. In this study, the genomes of 23 H. pullorum strains from different counties were comparatively analyzed. Among them, H. pullorum 2013BJHL was the first isolated and reported in China.
resultsThe genomes of the studied strains were estimated to vary from 1.55 to 2.03 Mb, with a GC content of ~ 34%. 4064 pan genes and 1267 core genes were obtained from the core-pan genome analysis using the Roary pipeline. Core genome SNPs (cg-SNPs) were obtained using Snippy4 software. Two groups were identified with the phylogenetic analysis based on the cg-SNPs. Some adhesion-related, immune regulation, motility-related, antiphagocytosis-related, toxin-related and quorum sensing related genes were identified as virulence factors. APH(3')-IIIa, APH(2'')-If, and AAC(6')-Ie-APH(2'')-Ia were identified as antibiotic resistance genes among the H. pullorum genomes. cat, SAT-4 and tetO genes were only identified in 2013BJHL, and tet(C) was identified in MIT98-5489. MIC determination revealed that the 2013BJHL showed acquired resistance to ciprofloxacin, nalidixic acid, tetracycline, gentamicin, streptomycin and erythromycin, only sensitive to ampicillin. The antibiotic resistance genetic determinants on the 2013BJHL genome correlate well with observed antimicrobial susceptibility patterns. Two types of VI secretion system (T6SS) were identified in 52.2% (12/23) the studied strains.
conclusionIn this study, we obtained the genetic characteristics of H. pullorum from different sources in the world. The comprehensive genetic characteristics of H. pullorum were first described. H. pullorum showed highly genetic diversity and two sub-types of T6SSs were first identified in H. pullorum. 2013BJHL was found to be multidrug resistant as it was resistant to at least three different antibiotic classes.
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